That's classic syncopation. Everyone falls back to old habits when they get back to their roots. Someday I'll try to listen to Japanese accents and see if I can get the sense of the Kansai accent Trope.
Everything by eisaku kubonouchi. One of the most important shoujo artists or just artists in Japan in general because he popularised duck mouth and detailed lips, and literally no one in the English sphere knows who he is